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Most Zoom error codes that stop you joining a meeting say the same thing in different numbers: the Zoom app on your device can't reach Zoom's servers. Zoom's support site uses one sentence for codes 5000, 5003, 5004 and the 104101 to 104118 family: an issue is preventing a connection between your device and Zoom's servers.
A few codes mean something else entirely, such as a problem with the host's account or a failed installation. Find your code below. If you're due in a meeting right now, skip to the quickest workaround: join from a web browser or from your phone on mobile data.
Is Zoom down?
Check our Zoom status page for live checks and reports. Zoom also runs its own status page at status.zoom.us, which lists meetings, phone, chat and the web portal separately. Zoom's own first test is simple: open a browser and see whether zoom.us loads. If it does, and colleagues can join the same meeting, the block is on your device or network.
Connection codes
- Error 5003: a connection between your device and Zoom's servers is being blocked. Zoom gives two fixes: uninstall Zoom and install the latest version, then check firewall and proxy settings.
- Errors 5000 and 5004: the same meaning as 5003, with the same network fixes.
- Errors 104101 to 104118: Zoom publishes separate articles for codes in this range (including 104101, 104103, 104105, 104114 and 104118) and they all carry the same explanation and the same three fixes: have a network administrator check the firewall and proxy, check whether antivirus software is interfering, and ask your internet provider whether it can reach Zoom.
- "You are unable to connect to Zoom. Please check your network connection and try again" on a Mac: Zoom's advice is to update macOS if it's an old version, then uninstall and reinstall Zoom.
- "Unable to establish secure connection to Zoom": Zoom describes this as a known error affecting some Mac users. Its fix is a full uninstall from the zoom.us menu (choose Uninstall Zoom), a restart, and a fresh install from Zoom's download centre.
Fixes for connection codes, quickest first
- Join from a browser. Click the meeting link and choose the option to join from your browser instead of opening the app. This often works when the app is blocked or broken, and gets you into the meeting while you fix the rest.
- Switch network. Join from your phone on mobile data, or connect the computer to a phone hotspot. If that works, your Wi-Fi, router or office network is blocking Zoom.
- Turn off any VPN or proxy, then quit Zoom fully and reopen it.
- Update or reinstall Zoom. Zoom lists a reinstall with the latest version as the first fix for 5003. Download it only from zoom.us.
- Check your security software. Pause the firewall or web shield in your antivirus for a minute to test. If Zoom then connects, add Zoom as an allowed app and switch the protection back on.
- Restart your router.
- On a work or school network, ask IT. Zoom needs outbound access on TCP ports 80 and 443 to zoom.us and zoom.com addresses, plus further ports for meeting audio and video. Zoom publishes the full list in its firewall article.
Codes that are not about your connection
- Error 1001: when you see this while joining a meeting, Zoom says the host's account has been disabled or restricted, and you won't be able to join. Nothing on your device will fix it. Contact the host for a new meeting from a working account.
- Error 1132: a sign-in error. Zoom's instructions are to update the app, sign in again so the error reappears, and click Report to Zoom next to the message. Zoom then follows up by email.
- Error 10002: an installation error. Zoom says either the installer's source link is broken or your antivirus has quarantined files the installer downloaded. Uninstall Zoom from Control Panel, then download and install it again.
- Error 13003: an installation error caused by Windows permissions that don't allow apps to be installed, or by a conflict with drivers. Run the installer from an administrator account, or ask your IT team to install it.
Why so many different numbers mean the same thing
Zoom opens several connections when you join: one to sign you in, one to find the meeting, and more to carry audio, video and screen sharing. The number in the error tells Zoom's engineers which step failed. It doesn't change what you should do. That's why Zoom's support articles for 5000, 5003, 5004 and the 1041xx codes read almost word for word the same. If you've fixed one of them before, the same fix is your best first try for the others.
Signs the block is on your network
- Zoom fails on office, school, hotel or hospital Wi-Fi but works on mobile data.
- The website zoom.us loads, but the app stays on connecting.
- Other people on the same network have the same error at the same time.
- The problem started after a new router, a VPN, or new security software.
Managed networks often inspect or filter encrypted traffic. Zoom asks administrators to exempt zoom.us addresses from proxy and SSL inspection, so if you're on a company laptop this is a job for your IT team, not something to work around.
Signs it's Zoom
If the error appears on Wi-Fi and on mobile data, on more than one device, and zoom.us itself is slow or won't load, the fault is more likely at Zoom's end. Check our Zoom status page and Zoom's own status page. Zoom's services fail separately: meetings can be down while chat works, or sign-in can fail while meetings already in progress carry on. Reinstalling during an outage won't help, and you may not be able to sign back in until it's over.
Before an important call
Zoom runs a test meeting at zoom.us/test. It joins you to a private room where you can check the connection, speaker and microphone. Run it on the network you'll actually be using. If the test meeting fails with one of the codes above, you have time to switch network or device before the real one starts.
Related fix guides
Questions
What does Zoom error code 5003 mean?
Zoom says error 5003 means an issue is preventing a connection between your device and Zoom's servers. Reinstall the latest version of Zoom, then check your firewall, proxy, VPN and antivirus.
What is Zoom error code 1001?
When it appears as you join a meeting, Zoom says the host's account has been disabled or restricted, so the meeting cannot be joined. The host needs to resolve it or set up the meeting from another account.
Why does Zoom work on my phone but not my laptop?
If the phone is on mobile data, your Wi-Fi or office network is probably blocking Zoom. If both are on the same Wi-Fi, the laptop's firewall, VPN, antivirus or a damaged Zoom install is the likely cause.
How do I fix Zoom error code 10002?
Zoom says error 10002 is an installation failure caused by a broken installer link or antivirus quarantining the installer's files. Uninstall Zoom, download the installer again from zoom.us and reinstall.